Can anyone help me out, I've built a lupo 1.8t and it runs and drives well until It gets hot then it tends to splutter on full boost, I've checked all the pipe work, I've unplugged maf and I've changed spark plugs, it's much better now with new plugs in but not perfect, it's also a little bit lumpy on idle and sometimes randomly dumps boost, I'm thinking coil packs or n75 valve, but I'd like to do a full log using vagcom before I start throwing money at it Willy nilly, so if anyone can guide me I'd appreciate it Cheers Dan
http://r-techperformance.co.uk/customer-pre-booking-checks-1-8t-20v/ Take the logging blocks as described at the bottom as a starting point.
Brilliant cheers Will do that Monday I think I've narrowed it down to n75 and coils just for the rough idle and reduced boost sometimes, I've managed to sort the full boost misfire by dropping the spark plug gap slightly Cheers Dan